That's a reason for hope. Radical Islam feeds on itself even more than it feeds on us. It may take another generation or two, but we can hope that it will be replaced by a more docile mindset, at least among those who wield power.
That's comforting thought. /s
Don't get me wrong. I understand what you're saying.
I'm just not sure Western Civ can last that long with the mad mullahs racing for WMDs while idiot princes and world leaders excuse their behavior in the name of tolerance and diversity.